21138528

素因数分解:

$2^5\times 3^1\times {\mathrm{31}}^1\times {\mathrm{7103}}^1$

素因数の和:7147

約数の個数: 48

約数和(自身を含む): 57286656

約数和(自身を除く): 36148128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 93, 96, 124, 186, 248, 372, 496, 744, 992, 1488, 2976, 7103, 14206, 21309, 28412, 42618, 56824, 85236, 113648, 170472, 220193, 227296, 340944, 440386, 660579, 681888, 880772, 1321158, 1761544, 2642316, 3523088, 5284632, 7046176, 10569264, 21138528]

約数ペア:

[(1, 21138528), (2, 10569264), (3, 7046176), (4, 5284632), (6, 3523088), (8, 2642316), (12, 1761544), (16, 1321158), (24, 880772), (31, 681888), (32, 660579), (48, 440386), (62, 340944), (93, 227296), (96, 220193), (124, 170472), (186, 113648), (248, 85236), (372, 56824), (496, 42618), (744, 28412), (992, 21309), (1488, 14206), (2976, 7103)]